Some stuff from old exception-based error handling approach

blender_common.py

@@ -10,12 +10,17 @@ from . import bpackage as bpkg
 
 class RepositoryProperty(PropertyGroup):
     url = bpy.props.StringProperty(name="URL")
-    # status = bpy.props.EnumProperty(name="Status")
+    status = bpy.props.EnumProperty(name="Status", items=[
+            ("OK",        "Okay",              "FILE_TICK"),
+            ("NOTFOUND",  "Not found",         "ERROR"),
+            ("NOCONNECT", "Could not connect", "QUESTION"),
+            ])
 
 
 class PACKAGE_UL_repositories(UIList):
     def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
         split = layout.split(0.3)
+        split.label(item.status)
         split.prop(item, "name")
         split.prop(item, "url")
 
@@ -42,29 +47,34 @@ class PackagePreferences(AddonPreferences):
 
 @subprocess_operator
 class PACKAGE_OT_refresh(Operator):
-    """
-    Operator which checks for updates to known package lists
-    """
+    """Check for new and updated packages"""
     bl_idname = "package.refresh"
-    bl_label = "Refresh package list(s)"
+    bl_label = "Refresh Packages"
 
     log = logging.getLogger(__name__)
 
     def invoke(self, context, event):
         prefs = context.user_preferences.addons[__package__].preferences
 
-        if 'repositories' not in prefs:
+        if 'repositories' not in prefs or len(prefs['repositories']) <= 0:
+            self.log.debug(prefs)
+            self.report({'WARNING'}, "No respositories to refresh")
             return {'FINISHED'}
 
-        # HACK: just do the active repo for now
+        # HACK: just use the active repo until we do multi-repo support
         repo = bpkg.Repository(prefs['repositories'][prefs.active_repository].to_dict())
 
         self.proc_kwargs = {'target': subprocess_function(repo.refresh, pipe=self.pipe)}
+
+        return {'RUNNING_MODAL'}
         
     def modal(self, context, event):
-        # try:
-        self.poll_subprocess()
-        # except:
+        try:
+            self.poll_subprocess()
+        except bpkg.repository.MissingURLError:
+            self.report({'WARNING'}, "No URL specified")
+
+            
         return {'RUNNING_MODAL'}
 
     def handle_response(self, resp):